<?php
//Code By Safe3 
//Add HTTP_REFERER by D.
$referer=empty($_SERVER['HTTP_REFERER']) ? array() : array($_SERVER['HTTP_REFERER']);
function customError($errno, $errstr, $errfile, $errline)
{ 
	echo "<b>Error number:</b> [$errno],error on line $errline in $errfile<br />";
	die();
}
set_error_handler("customError",E_ERROR);
$getfilter="'|\b(alert|confirm|prompt)\b|<[^>]*?>|^\\+\/v(8|9)|\\b(and|or)\\b.+?(>|<|=|\\bin\\b|\\blike\\b)|\\/\\*.+?\\*\\/|<\\s*script\\b|\\bEXEC\\b|UNION.+?SELECT|UPDATE.+?SET|INSERT\\s+INTO.+?VALUES|(SELECT|DELETE).+?FROM|(CREATE|ALTER|DROP|TRUNCATE)\\s+(TABLE|DATABASE)";
$postfilter="^\\+\/v(8|9)|\\b(and|or)\\b.{1,6}?(=|>|<|\\bin\\b|\\blike\\b)|\\/\\*.+?\\*\\/|<\\s*script\\b|<\\s*img\\b|\\bEXEC\\b|UNION.+?SELECT|UPDATE.+?SET|INSERT\\s+INTO.+?VALUES|(SELECT|DELETE).+?FROM|(CREATE|ALTER|DROP|TRUNCATE)\\s+(TABLE|DATABASE)";
$cookiefilter="\\b(and|or)\\b.{1,6}?(=|>|<|\\bin\\b|\\blike\\b)|\\/\\*.+?\\*\\/|<\\s*script\\b|\\bEXEC\\b|UNION.+?SELECT|UPDATE.+?SET|INSERT\\s+INTO.+?VALUES|(SELECT|DELETE).+?FROM|(CREATE|ALTER|DROP|TRUNCATE)\\s+(TABLE|DATABASE)";
function StopAttack($StrFiltKey,$StrFiltValue,$ArrFiltReq){  

	$StrFiltValue=arr_foreach($StrFiltValue);
	if (preg_match("/".$ArrFiltReq."/is",$StrFiltValue)==1){   
			//slog("<br><br>操作IP: ".$_SERVER["REMOTE_ADDR"]."<br>操作时间: ".strftime("%Y-%m-%d %H:%M:%S")."<br>操作页面:".$_SERVER["PHP_SELF"]."<br>提交方式: ".$_SERVER["REQUEST_METHOD"]."<br>提交参数: ".$StrFiltKey."<br>提交数据: ".$StrFiltValue);
			print "<div style=\"position:fixed;top:0px;width:100%;height:100%;background-color:white;color:green;font-weight:bold;border-bottom:5px solid #999;\"><br>您的提交带有不合法参数,谢谢合作!</div>";
			exit();
	}
	if (preg_match("/".$ArrFiltReq."/is",$StrFiltKey)==1){   
			//slog("<br><br>操作IP: ".$_SERVER["REMOTE_ADDR"]."<br>操作时间: ".strftime("%Y-%m-%d %H:%M:%S")."<br>操作页面:".$_SERVER["PHP_SELF"]."<br>提交方式: ".$_SERVER["REQUEST_METHOD"]."<br>提交参数: ".$StrFiltKey."<br>提交数据: ".$StrFiltValue);
			print "<div style=\"position:fixed;top:0px;width:100%;height:100%;background-color:white;color:green;font-weight:bold;border-bottom:5px solid #999;\"><br>您的提交带有不合法参数,谢谢合作!</div>";
			exit();
	}  
}  
//$ArrPGC=array_merge($_GET,$_POST,$_COOKIE);
foreach($_GET as $key=>$value){ 
	StopAttack($key,$value,$getfilter);
}
foreach($_POST as $key=>$value){ 
	StopAttack($key,$value,$postfilter);
}
foreach($_COOKIE as $key=>$value){ 
	StopAttack($key,$value,$cookiefilter);
}
foreach($referer as $key=>$value){ 
	StopAttack($key,$value,$getfilter);
}

function slog($logs)
{
	$toppath=$_SERVER["DOCUMENT_ROOT"]."/log.htm";
	$Ts=fopen($toppath,"a+");
	fputs($Ts,$logs."\r\n");
	fclose($Ts);
}
function arr_foreach($arr) {
	static $str;
	if (!is_array($arr)) {
	return $arr;
	}
	foreach ($arr as $key => $val ) {

	if (is_array($val)) {

		arr_foreach($val);
	} else {

	  $str[] = $val;
	}
	}
	return implode($str);
}
?>